A condition found in animals from the planet earth(primarily humans)in which the animal loses the ability to NOT speak every single word they are thinking. The verbal words are spoken about 1/trillionth of a second (actually faster than the speed of light) after the thought of the words in the brain itself.
Dad walking down street with 3 year old daughter bump into an extremely overweight acquaintance of dad's.
Dad:"Hi Lyndon."
Lyndon: "Hi Chuck."
Gracie(3-year-old daughter poking finger into Lyndon's large soft belly):"Mr. YOU have a FAT tummy!"
Gracie would at least momentarily be experiencing "Brainmouth".
A phrase often used by an angry spouse when their partner has described an inappropriate situation that they have beenthinking about and the spouse would rather they didn't.
The reason I’ve never gotten coffee at Julie’s Cafe before you suggested we meet up here is that a persistent case of brainpout caused my avoidance of anything with the name JULIE after a kid named Julie set a fire in my locker when I was fifteen.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".